Across
- 4. a set of layers of gases surrounding Earth and protecting us from getting overheated
- 7. result of human activity making our planet warmer
- 8. Highest pressure at sea level
- 10. most important greenhouse gas emitted by humans, but several other gases contribute to climate change, too
- 13. trap heat in the atmosphere, which makes the Earth warmer
- 14. formula for carbon dioxide
- 17. ozone layer protects from uv radiation
- 18. man-made gases that can stay in the atmosphere for centuries and contribute to a global greenhouse effect
- 21. increasing co2 in the atmosphere by cutting down trees
- 23. formula for methane
- 24. formula for water vapor
- 25. a natural process that warms the Earth's surface be reflecting sun’s energy
Down
- 1. occurs when a planet's atmosphere contains greenhouse gas in an amount sufficient to block thermal radiation from the planet, preventing the planet from cooling and from having liquid water on its surface.
- 2. a gas produced both through natural sources and human activities, including agriculture
- 3. (burning of this) is one of the global warming reasons
- 5. chemicals destroying the ozone layer
- 6. created by chemical reactions between oxides of nitrogen and volatile organic compounds
- 9. change of Earth’s climate due to human activities
- 11. increase of human population mankind the climate change even worse
- 12. meteorites burn up
- 15. Gamma rays and x rays absorbed
- 16. consists of a mixture of solid and liquid particles suspended in the atmosphere varying in composition, source and size
- 19. angreenhouse gas produced by the use of fertilizers, nitric acid production, and biomass burning.
- 20. gaseous phase of water that is part of atmospheric gases
- 22. protects living things from ultraviolet radiation from the sun